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PWM 的代码
pwm.pjt
; Code Composer Project File, Version 2.0 (do not modify or remove this line)
[Project Settings]
ProjectName="pwm"
ProjectDir="C:\ti\myprojects\SPWM\"
ProjectType=Executable
CPUFamily=TMS320C28
pwm.c
//模块：PWM.C
//功能：PWM解码模块
//晶振：24.000MHz
//芯片: STC12C5412AD
//版本：V1.0.0
//设计：魏广寅
//日期：2007.4.10
#include "stc12c5412ad.h"
#define uchar unsigned char
#define uint unsigned int
#define CNT
pwm.hex
:100000007590FFE5907004C2B080F5B4FF04D2B0E3
:1000100080EEF874FFC398F9D2B0120028D8FBC262
:0D002000B0120028D9FB80D87F11DFFE222E
:00000001FF
pwm.lst
ASEM-51 V1.2 Copyright (c) 1996 by W.W. Heinz PAGE 1
MCS-51 Family Cross Assembler A S E M - 5 1
pwm.sdi
,,, ORG 0
0000,75 90 FF,LOOP,LOOP: MOV P1,#0FFH
0003,E5 90,, MOV A,P1
0005,70 04,, JNZ LOOP1
0007,C2 B0,, CLR P3.0
0009,80 F5,, SJMP LO
pwm.asm
ORG 0
LOOP: MOV P1,#0FFH
MOV A,P1
JNZ LOOP1
CLR P3.0
SJMP LOOP
LOOP1: CJNE A,#0FFH,LOOP2
SETB P3.0
SJMP LOOP
LOOP2: MOV R0,A
MOV A,#0FFH
CLR C
SUBB A,R0
MOV R1,A
SETB P3.0
L